Imipramine (Tofranil, Tofranil PM)
Imipramine is an antidepressant found in two products: imipramine hydrochloride (Tofranil®) and imipramine pamoate (Tofranil PM®). Since they contain the same active ingredient, both products generally work the same way. However, there are several differences between them.
For example, Tofranil PM is licensed for the treatment of depression only, while Tofranil is also licensed to treat bedwetting in children. In addition, Tofranil comes in the form of a tablet, while Tofranil PM comes in capsule form. Finally, the two products are sold in different strengths.
(To learn more about the differences between these two products, click Imipramine.)